TOTAL VOLUME:

$134.1b

24H VOL:

$133,388,117

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,436,095,462

405,232

Markets across

30,526

events

MATCHED EVENTS:

2,693

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

BETA
Dashboards
Insights
Indices
Tour
All
Trending
Breaking
New
Ending Soon
Politics
Sports
Crypto
Companies
Elections
Financials
Economics
Other
Entertainment
Science and Technology
Consecutive days of average temperature in San Diego above 90°F - week of Aug 31, 2026
kalshi

Consecutive days of average temperature in San Diego above 90°F - week of Aug 31, 2026

Volume:
$1,871

2+ consecutive days

 - Kalshi

2+ consecutive days - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 7, 2026

Closed: Sep 6, 11:59 PM EST

kalshi

Kalshi

View
Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

2+ consecutive days

View
0%
Yes 0¢No 100¢
100¢
N/A
$1,693
N/A
N/A
$1,693
Settled
No
kalshi

6+ consecutive days

View
0%
1%
Yes 0¢No 100¢
100¢
N/A
$168
N/A
N/A
$159
Settled
No
kalshi

3+ consecutive days

View
0%
Yes 0¢No 100¢
100¢
N/A
$10
N/A
N/A
$10
Settled
No
kalshi

4+ consecutive days

View
0%
Yes 0¢No 100¢
100¢
N/A
$1
N/A
N/A
$1
Settled
No
kalshi

5+ consecutive days

View
N/A
N/A
100¢
N/A
N/A
N/A
N/A
N/A
Settled
No
Total markets: 5

Description

These markets focus on whether San Diego will experience consecutive days of high temperatures during a specific week in 2026. The outcome depends on daily average temperatures recorded at a designated weather station, with varying thresholds for the number of consecutive days required.

Kalshi

All markets resolve based on consecutive days where the daily average temperature at KSAN in San Diego exceeds 90°F during the week of August 31 to September 6, 2026. Each market has a different threshold for the required number of consecutive days (ranging from 2 to 6 days). A day's average temperature is calculated as the arithmetic mean of hourly temperatures reported from 12:00 AM to 11:59 PM local time, rounded to the nearest whole degree. Only days within the specified week count toward a streak, and an average of exactly 90°F does not meet the condition. If a day has fewer than 18 reported hourly values, it breaks the streak and cannot be counted. Data as published at the expiration time will be used, with later revisions disregarded.

Frequently asked questions

On Kalshi, the dashboard for the San Diego heatwave market tracks real-time odds and price movements, alongside 24-hour volume of $787. It shows how traders on Kalshi are pricing the likelihood of consecutive days with average temperatures above 90°F during the week of Aug 31, 2026. The page updates continuously, reflecting market sentiment and any new information that could shift expectations for the event.

On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. On Kalshi, traders set the price through active buying and selling of contracts that represent the two possible outcomes. The current implied probability reflects the collective judgment of participants about the likelihood of San Diego experiencing the required consecutive high-temperature days. Market depth and liquidity, shown through volume of $1,871, also influence how prices adjust to new weather data or forecasts.

This market resolves around Sep 8, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Meteorologists’ final analyses and official temperature records for the specified week will determine whether the market’s conditions are met. The process relies on widely accepted data sources to ensure an unbiased, transparent resolution for all participants on Kalshi.

Key signals that could shift this market include updated long-range weather forecasts, sudden changes in atmospheric patterns, and reports from regional climate monitoring agencies. Any indication of an emerging heatwave or cooler-than-expected conditions may cause traders to adjust their positions. Additionally, news coverage highlighting extreme weather preparations in San Diego can influence sentiment and shift the implied odds on Kalshi before resolution.